body {
    background-color: #252525;
    color: azure;
}
#textInput {
    width: 250px;
    resize: none;
    height: 100px;
    border-width: 1px;
    border-style: solid;
    border-color: coral;
    background-color: #252525;
    color: peachpuff;
    text-align: center;
    vertical-align: middle; 
    display: table-cell;
    align-items: center;
    border-radius: 20px;
    -webkit-transition: border-color 200ms ease-in;
    -ms-transition: border-color 200ms ease-in;
    transition: border-color 200ms ease-in;
    outline: none;
}

#textInput:focus {
    border-radius: 20px;
    border-color: darkslategray;
    outline: none;
    -webkit-transition: border-color 200ms ease-out;
    -ms-transition: border-color 200ms ease-out;
    transition: border-color 200ms ease-out;
}

#generateBtn {
    padding-top: 20dp;
    align-self: center;
    padding-left: 25%;
    padding-right: 25%;
    width: 50%;
    border: none;
    background: salmon;
    color: darkslateblue;
}